CN106803469B - Press-key structure - Google Patents

Abstract

The invention relates to a key structure, which includes a bottom plate, a key cap, a first bracket, a second bracket and a magnetic piece. The bottom plate has a magnetic part, and the keycap is arranged on the bottom plate; the first bracket is arranged between the bottom plate and the keycap; the second bracket is arranged between the bottom plate and the keycap, and the keycap can be relatively The bottom plate moves up and down; the magnetic part is fixed on the first support, when the keycap moves up and down relative to the bottom plate, the first support and the second support rotate oppositely relative to the bottom plate, and the magnetic part and the first support rotate in the same direction. The mechanism used to generate the restoring force in the present invention can function without occupying too much space, reducing the restrictions on the structure and movement of the bracket; the required attraction force is obtained by the materials of the magnetic parts and magnetic parts, without the need Increase the structural volume of the magnetic part and the magnetic part, and maintain the operating stability and structural strength of the key structure.

Description

key structure

This application is a divisional application of an invention patent application with an application date of April 9, 2015, an application number of 201510166059.2, and an invention title of "Key Structure".

technical field

The invention relates to a key structure, in particular to a key structure actuated by magnetic attraction force.

Background technique

The key structure usually provides a mechanism for the keycap to move up and down through a cross-connected bracket, and an elastic member (such as a silicone knob) is provided under the keycap to provide a restoring force for the keycap to drive the keycap back to its original position ( i.e. the position when not pressed). The bracket and the elastic member are usually configured in a compact manner to reduce the installation space required by the button structure. However, since the bracket is cross-connected and the silicone round protrusion is disposed therebetween, the bracket structure has a certain structural complexity. In addition, the silicone knob needs to have a considerable structural volume to provide the user with sufficient pressing feedback (ie, the reaction force felt by the user when pressing), so that the required volume of the button structure is limited. Therefore, unless the actuation stability of the key cap or the feeling of pressing feedback is reduced or sacrificed, it is difficult for this key structure to be applied to a thin keyboard.

Contents of the invention

In view of the problems in the prior art, one of the objects of the present invention is to provide a key structure that utilizes the attractive force generated between the magnetic part and the bottom plate to simultaneously drive the two brackets supporting the key cap to move, so that the key cap can be operated simultaneously. The stability of the movement and the sufficient feeling of pressing feedback are beneficial to be suitable for thin keyboards (such as but not limited to notebook computer keyboards).

In order to solve the above problems, the present invention proposes a key structure, which comprises a bottom plate, a key cap, a first bracket, a second bracket and a magnetic member. The bottom plate has a magnetic part; the keycap is arranged on the bottom plate; the first bracket is arranged between the bottom plate and the keycap, and the first bracket is a plastic part; the second bracket is arranged between the bottom plate and the keycap, The second bracket is a plastic part, and the keycap can move up and down relative to the base plate through the first bracket and the second bracket; the magnetic part is arranged on the first bracket corresponding to the magnetic part, and the magnetic part is a magnet or A paramagnetic metal part, an attractive force is generated between the magnetic part and the magnetic part, and the attractive force makes the magnetic part contact and apply force to the first bracket and the second bracket to drive the first bracket and the second bracket moving the keycap in a direction away from the bottom plate; wherein, the first bracket rotatably abuts against the bottom plate and the keycap, and the second bracket rotatably abuts against the bottom plate and the keycap, when the keycap When moving up and down relative to the bottom plate, the first bracket and the second bracket rotate oppositely relative to the bottom plate, and the magnetic member rotates in the same direction as the first bracket.

In addition, the present invention also proposes another key structure, which comprises a bottom plate, a key cap, a first bracket, a second bracket, and a magnetic member. The bottom plate has a magnetic part; the keycap is arranged on the bottom plate; the first bracket is arranged between the bottom plate and the keycap; the second bracket is arranged between the bottom plate and the keycap, and the keycap passes through the first bracket and the second bracket can move up and down relative to the bottom plate; the magnetic piece is fixed on the first bracket, and an attractive force is generated between the magnetic piece and the magnetic part, and the attractive force makes the magnetic piece contact and apply force to the The first bracket and the second bracket drive the first bracket and the second bracket to move the keycap in a direction away from the bottom plate, wherein the magnetic part and the first bracket rotate relative to the bottom plate with the same rotation axis.

As an optional technical solution, a groove is formed on the first bracket, and the magnetic component is embedded in the groove.

As an optional technical solution, the base plate includes a connecting portion through which the first bracket is connected to the base plate, and the magnetic piece has a relief groove. When the keycap moves toward the base plate, the connecting portion extends relatively. into the slot.

As an optional technical solution, the magnetic piece has a first side, the second bracket has a central side, the first side of the magnetic piece is opposite to the central side, the magnetic piece has a third protrusion, and the third The protruding portion is located on the first side, and the third protruding portion abuts against the central side of the second bracket.

As an optional technical solution, the second bracket includes a third card slot, the third card slot is located at the center side, and the third protrusion is locked into the third card slot.

As an optional technical solution, the magnetic part also has a fourth protruding part and a fifth protruding part, both of the fourth protruding part and the fifth protruding part are located on the first side, and the first protruding part of the magnetic part One side has a middle point and two ends, the third protrusion is located at the middle point, and the fourth protrusion and the fifth protrusion are respectively located at the two ends.

As an optional technical solution, the length of the first side of the magnetic member is greater than the length of the central side of the second bracket, so that neither the fourth protrusion nor the fifth protrusion contacts the second bracket And extend directly above the bottom plate without obstruction.

As an optional technical solution, the bottom plate also has a plurality of fixing mechanisms, the plurality of fixing mechanisms protrude from the bottom plate to fix the magnetic part, the magnetic part has a waist, and the projection of the waist and the magnetic part in the vertical direction Overlapping, the width of the magnetic portion is greater than the width of the waist, and the plurality of fixing mechanisms are respectively located on different sides of the waist.

As an optional technical solution, the first bracket includes a first part and a second part, the first part rotatably contacts the keycap with a first rotation axis, and the second part rotatably abuts against the keycap with a second rotation axis. abut against the base plate, the magnetic member includes an abutting portion, and the abutting portion rotatably abuts against the base plate with a third rotation axis, and the projection of the third rotation axis on the base plate is located between the first rotation axis and the second rotation axis. The two rotation axes are between the projections on the bottom plate.

As an optional technical solution, the second bracket includes a first part, a second part and a third part, the first part rotatably abuts against the keycap, the second part rotatably abuts against the bottom plate, the The third part is kept in contact with the magnetic part, and the second part is located between the first part and the third part.

As an optional technical solution, the magnetic member is fixed on the first bracket by means of adhesion, tight fit, slot structure or embedding and injection.

As an optional technical solution, the magnetic piece has a first side, a second side, a third side and a first protrusion, the first side is opposite to the second bracket, and the second side is opposite to the third side and are adjacent to the first side, the first protruding part is located on the second side of the magnetic part, and the first protruding part is combined with the first bracket to prevent the magnetic part from detaching from the first bracket.

As an optional technical solution, the first side is adjacent to the second side, the first protruding portion includes a cantilever extending in an extending direction biased towards the bottom plate, the cantilever has an inclined end surface in the extending direction, and the inclined end surface faces The bottom plate and the first slot have edges, and the projection of the edge in the vertical direction falls within the projection of the inclined end surface in the vertical direction.

As an optional technical solution, the magnetic part also has a second protrusion. The second protrusion is located on the third side of the magnetic part. The second protrusion is combined with the first bracket to prevent the magnetic part from Detach from the first bracket.

As an optional technical solution, the magnetic piece has a first side, a second side, a third side and a protrusion, the first side is opposite to the second bracket, the second side is opposite to the third side and both Adjacent to the first side, the protrusion is located on the opposite side of the first side of the magnetic member, and the protrusion engages the first bracket to prevent the magnetic member from being disengaged from the first bracket.

As an optional technical solution, the first bracket is a plastic part,

The magnetic member is a paramagnetic metal sheet, and the magnetic part is a magnet; or

The magnetic part is a magnet, and the magnetic part is a paramagnetic metal sheet; or

Both the magnetic part and the magnetic part are magnets, and the magnetic poles of the two are oppositely set.

Compared with the prior art, the mechanism (that is, the magnetic part and the magnetic part) used to generate the restoring force in the button structure of the present invention can function without occupying too much space, reducing the structure and work of the first bracket and the second bracket. In addition, the required attractive force can be obtained by selecting the materials of the magnetic member and the magnetic part without increasing the structural volume of the magnetic member and the magnetic part. In this way, the operating stability and structural strength of the first bracket and the second bracket can be maintained above a certain level. Therefore, the key structure of the present invention can overcome the dilemma that the key cap structure in the prior art cannot provide both the stability of the keycap action and the sufficient feeling of pressing feedback when the key structure is applied to a thin keyboard.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

FIG. 1 is a schematic diagram of a key structure according to a preferred embodiment of the present invention;

Fig. 2 is a partial exploded view of the button structure in Fig. 1;

Fig. 3 is an exploded view of the button structure in Fig. 1;

Fig. 4 is a sectional view along the line X-X of the button structure in Fig. 1;

Fig. 5 is a cross-sectional view after the keycap of the key structure in Fig. 1 is pressed;

Fig. 6 is a cross-sectional view of the keycap of the button structure in Fig. 1 after being obliquely pressed to the right;

Fig. 7 is a cross-sectional view when the left side of the keycap of the key structure in Fig. 1 is pressed with force;

Fig. 8 is an exploded view of a button structure according to another preferred embodiment of the present invention;

Fig. 9 is a top view of the button structure in Fig. 8;

Fig. 10 is a cross-sectional view along line Y-Y of the button structure 3 in Fig. 9;

Fig. 11 is a cross-sectional view after the keycap of the key structure in Fig. 8 is pressed;

Fig. 12 is an exploded view of a button structure according to yet another preferred embodiment of the present invention;

Fig. 13 is a cross-sectional view of the button structure in Fig. 12;

Fig. 14 is a cross-sectional view of the keycap of the button structure in Fig. 12 after being obliquely pressed;

Fig. 15 is an exploded view of a button structure according to yet another preferred embodiment of the present invention;

Fig. 16 is a schematic diagram of the combination of the magnetic part and the first bracket of the button structure in Fig. 15;

Fig. 17 is a schematic diagram of the first bracket in Fig. 15 at another viewing angle;

Fig. 18 is a top view of the button structure in Fig. 15;

Fig. 19 is a sectional view along the line Z-Z of the button structure in Fig. 18;

FIG. 20 is a cross-sectional view of the button structure in FIG. 18 along the line W-W.

Detailed ways

Please refer to Figs. 1 to 4, Fig. 1 is a schematic diagram of a key structure 1 according to a preferred embodiment of the present invention, Fig. 2 is a partial exploded view of the key structure 1, and Fig. 3 is an exploded view of the key structure 1, Fig. 4 is a cross-sectional view of the key structure 1 along the line X-X in FIG. 1 . The button structure 1 includes a bottom plate 12 , a thin film circuit board 14 , a keycap 16 , a first frame 18 , a second frame 20 and a magnetic element 22 . The bottom plate 12 has a magnetic portion 122 (the location of which is shown in dotted lines in FIG. 2 ) and a plurality of connecting portions 124, 126. ), but the present invention is not limited thereto. The thin film circuit board 14 is stacked on the base plate 12 and has two switches 142a, 142b (shown in dotted circles in FIG. 3 ), wherein the connecting parts 124, 126 protrude from the thin film circuit board 14 through the hollow of the thin film circuit board 14 . The keycap 16 is disposed on the base plate 12 and the thin film circuit board 14 and has a plurality of connection portions 162 , 164 (shown in dashed lines in FIG. 2 ). The first bracket 18 and the second bracket 20 are relatively disposed between the base plate 12 and the keycap 16. The first bracket 18 is a plastic part (such as a plastic injection part) and is rotatably connected to the connecting portion 124 of the base plate 12 by a pivot structure 182. To abut against, the first bracket 18 movably (rotatably) abuts against the connecting portion 162 of the keycap 16 through the pivot structure 184 . The second bracket 20 rotatably abuts against the connecting portion 126 of the bottom plate 12 with the pivot structure 202, and the second bracket 20 movably (slidably) abuts against the connecting portion 164 of the key cap 16 with the pivot structure 204, thereby making the key The cap 16 can stably move up and down relative to the bottom plate 12 via the first bracket 18 and the second bracket 20 . Wherein, the pivot structures 182, 202 are located between the pivot structures 184, 204, and the pivot structures 182, 184, 202, 204 are respectively implemented by two protruding cylinders, but the present invention is not limited thereto. In addition, the connecting portion 162 in FIG. 2 can be designed in the shape of the connecting portion 164 , so that the pivot structure 184 can slidably abut against the connecting portion 162 . In FIG. 4 , pivotal structures 182 , 184 , 202 , 204 are marked with crosses with respect to the rotation axes of bottom plate 12 and keycap 16 . The location is indicated by a dotted circle.

The magnetic part 22 is arranged between the bottom plate 12 and the keycap 16 corresponding to the magnetic part 122, and the magnetic part 22 is fixed on the first support 18, so the magnetic part 22 is also rotatable relative to the bottom plate 12, and the magnetic part 22 and the first support 18 It is rotatable with respect to the bottom plate 12 on the same rotation axis. In this embodiment, the magnetic piece 22, such as a paramagnetic metal piece, is embedded into the groove 186 formed on the first bracket 18 in an inlaid manner. The inlaid method can be achieved by adhesion, tight fit, slot structure, embedded injection, etc. way to achieve. An attractive force (indicated by a thick line with double arrows in FIG. 4 ) can be generated between the magnetic component 22 and the magnetic portion 122 , so that the magnetic component 22 and the magnetic portion 122 tend to approach each other. Among them, the magnetic part 22 is directly set up against the magnetic part 122, but the present invention is not limited thereto; The first bracket 18 and the second bracket 20 are actuated to provide the required pressing feedback feel (ie, the reaction force felt by the user when pressing) and the like. This attractive force will make the magnetic piece 22 exert force on the first bracket 18 and make the magnetic piece 22 contact and apply force to the second bracket 20. Since the magnetic piece 22 is combined with the first bracket 18, the position where the attractive force occurs It can be directly regarded as the force application point of the first bracket 18, so the force application point of the magnetic member 22 to the first support 18 is located between the pivot structures 182 and 184, and the force application point of the magnetic member 22 to the second support 20 is located at the pivot structure. Between 202 and 204, so through the principle of leverage, the attractive force then drives the first bracket 18 and the second bracket 20 to rotate to move the keycap 16 in a direction away from the bottom plate 12; The application point of the force is located on the opposite sides of the pivot structure 182 with respect to the pivot structure 184, and the force application point of the second support 20 is located on the opposite sides of the pivot structure 202 with respect to the pivot structure 204, so the attraction force The first bracket 18 is driven to rotate counterclockwise and the second bracket 20 is driven to rotate clockwise through the magnetic member 22 . In addition, when the keycap 16 is not pressed, the magnetic member 22 is driven by the attractive force to keep in contact with the protruding end portion 208 of the second bracket 20 . The protruding end portion 208 is located between the pivot structure 202 and the magnetic piece 22 , and when the second support 20 rotates counterclockwise, the magnetic piece 22 can be tilted up with relatively light force.

Please also refer to FIG. 5 , which is a cross-sectional view of the key structure 1 after being pressed. When the keycap 16 is pressed approximately horizontally (as shown in FIG. 5 , wherein the external force F1 is applied approximately in the middle of the keycap 16), the first bracket 18 is restrained by the keycap 16 and the bottom plate 12 and rotates clockwise. The two brackets 20 are restrained by the keycap 16 and the bottom plate 12 to rotate counterclockwise. Since the magnetic part 22 is fixed on the first bracket 18 , the magnetic part 22 rotates in the same direction as the first bracket 18 , that is, the magnetic part 22 moves away from the magnetic part 122 as the first bracket 18 rotates clockwise. In addition, when the second bracket 20 rotates counterclockwise, it can contact and push the magnetic part 22 through the protruding end 208 to move away from the magnetic part 122 . This phenomenon also facilitates the clockwise rotation of the first bracket 18 . In this embodiment, the first bracket 18 includes a first protruding portion 188 corresponding to the switch 142a, and the second bracket 20 includes a second protruding portion 206 corresponding to the switch 142b. After the keycap 16 is pressed substantially horizontally, the first protruding portion 188 is The film circuit board 14 can be touched to trigger the switch 142a, and the second protrusion 206 can be pressed to the film circuit board 14 to trigger the switch 142b. At this time, although the attractive force generated between the magnetic part 22 and the magnetic part 122 (also shown as a thick line with double arrows in FIG. 5 ) weakens, it still keeps driving the magnetic part 22 towards the magnetic part 122 . When the external force F1 disappears, the attractive force drives the magnetic part 22 to move toward the magnetic part 122; at the same time, the magnetic part 22 exerts force on the first bracket 18 and contacts and applies force to the second bracket 20 to drive the first bracket 18 to rotate counterclockwise. , to drive the second bracket 20 to rotate clockwise, and then move the keycap 16 away from the bottom plate 12 to return to the original position (as shown in FIG. 4 ).

When the keycap 16 is obliquely pressed (for example, the keycap 16 is pressed obliquely to the right as shown in FIG. The direction of the magnetic part 122 moves. Although the second bracket 20 is almost not rotating at this time, the first bracket 18 itself has the first protrusion 188. At this time, the first protrusion 188 can still effectively press the film circuit board 14 to trigger the switch 142a; that is, the button structure 1 is still effectively pressed, so the tilt press operation is still valid. Similarly, when the external force F2 disappears, the attractive force drives the magnetic part 22 to move toward the magnetic part 122; at the same time, the magnetic part 22 exerts force on the first bracket 18 to drive the first bracket 18 to rotate counterclockwise, and then the keycap 16 moves along the Move away from the direction of the bottom plate 12 to return to the original position (as shown in FIG. 4 ).

When only the left side of the keycap 16 is pressed by the external force F3 and moves toward the bottom plate 12 (as shown in FIG. Constrained and rotated counterclockwise. During the counterclockwise rotation of the aforementioned second bracket 20, the magnetic member 22 is driven by the attractive force and remains in contact with the second bracket 20, so that the second bracket 20 rotates clockwise with the first bracket 18 via the magnetic member 22, and then As a result, the keycap 16 as a whole still moves downward substantially horizontally, the first protrusion 188 touches the film circuit board 14 to trigger the switch 142a, and the second protrusion 206 touches the film circuit board 14 to trigger the switch 142b. Similarly, when the external force F3 disappears, the attractive force drives the magnetic part 22 to move toward the magnetic part 122; at the same time, the magnetic part 22 exerts force on the first bracket 18 to drive the first bracket 18 to rotate counterclockwise, and the magnetic part 22 contacts at the same time And apply force to the second bracket 20 to drive the second bracket 20 to rotate clockwise, and then move the keycap 16 away from the bottom plate 12 to return to the original position (as shown in FIG. 4 ). Therefore, the movement of the keycap 16 in this case is equivalent to that of the keycap 16 in FIG. 5 , and both move up and down substantially horizontally relative to the bottom plate 12 .

As described above, the attractive force generated between the magnetic part 22 and the magnetic part 122 is to directly apply force to the first bracket 18 and the second bracket 20 through the magnetic part and generate a rotational moment to the first bracket 18 and the second bracket 20, so that The attractive force acts stably and reliably on the first bracket 18 and the second bracket 20 . In this embodiment, the first bracket 18 and the second bracket 20 are arranged separately, that is, there is no direct connection or contact with each other, but the first bracket 18 can still be moved by the second bracket 20 through the magnetic member 22 Influence, the operating situation shown in Figure 7; but the present invention is not limited thereto. For example, in practice, the first bracket 18 and the second bracket 20 may still be in direct structural contact or connection, so as to improve the operational relationship between the first bracket 18 and the second bracket 20 .

In addition, in this embodiment, the first bracket 18 and the second bracket 20 are arranged opposite to each other (or symmetrically arranged), so that when the keycap 16 moves up and down horizontally relative to the bottom plate 12, the first bracket 18 and the second bracket 20 rotates in opposite directions relative to the bottom plate 12 , that is, rotates counterclockwise and clockwise respectively, or rotates clockwise and counterclockwise; but the present invention is not limited thereto. For example, in actual operation, although the first bracket 18 and the second bracket 20 are arranged separately, they can still be designed to rotate in the same direction when the keycap 16 moves up and down horizontally relative to the bottom plate 12; Although the coordination adjustment is slightly different from the foregoing embodiments, it can still be accomplished by those skilled in the technical field of the present invention based on the disclosure of this specification and drawings, so no further description is given. Moreover, in this embodiment, the second bracket 20 includes a first part, a second part and a third part, the first part (ie, the pivot structure 204) is rotatably abutted against the keycap 16, and the second part (that is, the pivot structure 202) is rotatably abutting against the bottom plate 12, and the third part (that is, the protruding end 208) is kept in contact with the magnetic member 22, the second part is located between the first part and the third part, That is to say, the force exerted by the magnetic part 22 and the keycap 16 on the second bracket 20 is located on both sides of the fulcrum of the lever (ie, the pivot structure 202 ), acting like a seesaw. In this embodiment, the first bracket 18 and the second bracket 20 can be made of plastic materials, for example, by injection molding, which is beneficial to control the size of the structure and easily achieve the required dimensional accuracy, so that the pivot structures 184, 204 can be easily integrated with The connecting portions 164 , 162 of the keycap abut against each other stably, and provide better pull-out resistance of the keycap 16 . In addition, the first bracket 18 and the second bracket 20 can be made of light-transmitting plastic materials, which are used in conjunction with the backlight module to realize a luminous keyboard with better luminous effect.

In addition, in this embodiment, the attractive force generated between the magnetic part 22 and the magnetic part 122 can be realized through the paramagnetic metal part (that is, the magnetic part 22 ) and the magnet (that is, the magnetic part 122 ) that are oppositely arranged, but the present invention This is not the limit. For example, the magnetic part 22 is implemented with a magnet, and the magnetic part 122 is implemented with a paramagnetic metal part, and an attractive force can also be generated between the two; at this time, when the bottom plate 12 is also implemented with a paramagnetic metal part, the magnetic part 122 The part of the bottom plate 12 corresponding to the magnetic component 22 is directly realized, which can simplify the complexity of the structure of the bottom plate 12 . For another example, both the magnetic part 122 and the magnetic member 22 are implemented by magnets, but the magnetic poles are oppositely arranged, and an attractive force can still be generated between them.

In the foregoing embodiments, the first bracket 18 is a plastic part, which is easy to be combined with the magnetic part 22 by embedding and injection, but the present invention is not limited thereto, for example, even if the first bracket 18 is a metal part (such as a stamping part) However, the magnetic member 22 can still be easily fixed in the groove 186 of the first bracket 18 through the structure of adhesion, tight fit, and groove structure. In addition, the button structure of the present invention is not limited to the fixed combination of the magnetic component 22 and the first bracket 18 . Please refer to Figures 8 to 10, Figure 8 is an exploded view of the key structure 3 according to another preferred embodiment of the present invention, Figure 9 is a top view of the key structure 3, and Figure 10 is a key structure 3 along the middle line Y-Y in Figure 9 cutaway view. The structure of the key structure 3 is substantially the same as that of the key structure 1 , so the same components of the key structure 3 still use the component symbols of the key structure 1 . The following mainly focuses on the differences between the key structure 3 and the key structure 1. For other descriptions of the key structure 3, please refer to the relevant description of the key structure 1, and no further details are given.

In this embodiment, the magnetic member 42 of the button structure 3 includes two abutting portions 422 and two tongue portions 424, and the first bracket 38 of the button structure 3 includes a hollow 190 and two slots 192, so that the magnetic member 42 is assembled to the second When in the groove 186 of a bracket 38, the abutting portion 422 can pass through the hollow 190 to rotatably abut against the base plate 12, and the tongue portion 424 is correspondingly inserted into the slot 192, so that the magnetic member 42 can be rotated relative to the base plate 12. rotate. In this embodiment, the rotation axis of the magnetic member 42 relative to the base plate 12 is substantially the same as that of the first support 38, that is, the magnetic member 42 and the first support 38 are approximately relative to the base plate with the same rotation axis (marked with a cross in the figure). 12 rotatable. An attractive force (indicated by a thick line with double arrows in FIG. 10 ) can be generated between the magnetic piece 42 and the magnetic portion 122 , so that the magnetic piece 42 and the magnetic portion 122 tend to approach each other. In this embodiment, although the magnetic piece 42 is not fixedly combined with the first bracket 38, through the structural mutual restraint of the magnetic piece 42 and the first bracket 38, the attractive force can still make the magnetic piece 42 exert force on The first bracket 38 . Under the action of this attractive force, the direction and location of the force exerted by the magnetic member 42 on the first support 38 (located on both sides of the magnetic member 42 relative to the rotation axis of the bottom plate 12) are generally shown by the solid single arrow in FIG. 10 . The attractive force can drive the first bracket 38 to rotate counterclockwise through the magnetic member 42 to move the keycap 16 away from the bottom plate 12 . When the first bracket 38 is driven by the keycap 16 to rotate clockwise (for example, the keycap 16 is pressed in FIG. (shown) to drive the magnetic part 42 to rotate clockwise to move away from the magnetic part 122 .

In addition, in the key structure 3 of this example, when an external force is applied to the middle or the right side of the key cap 16, the action of the key structure 3 is roughly the same as that of the key structure 1. Refer to FIG. 5 and FIG. 6 and their related descriptions accordingly. . Please refer to FIG. 11 , which is a cross-sectional view of the keycap 16 of the key structure 3 after being obliquely pressed. When the external force F4 is applied to the left side of the keycap 16, the second bracket 20 is driven by the keycap 16 to rotate counterclockwise and drive the magnetic part 42 to rotate clockwise to keep away from the magnetic part 122. Description of the operation of the second bracket 20. At this time, although the magnetic piece 42 is not completely fixed with the first bracket 38, when the magnetic piece 42 is driven by the second bracket 20 to rotate clockwise, the right side of the abutting portion 422 on the magnetic piece 42 will face the concave The bottom 186a of the groove 186 exerts a force to exert a clockwise rotation moment on the first bracket 38, thereby causing the first bracket 38 to also rotate clockwise. Therefore, under the action of the external force F4, the actuation logic of the button structure 3 is still the same as that of the button structure 1 .

In the foregoing embodiments, the magnetic member 42 of the button structure 3 and the first bracket 38 are both rotatable with respect to the bottom plate 12 on the same rotation axis, but the present invention is not limited thereto. Please refer to Fig. 12 and Fig. 13, Fig. 12 is an exploded view of the key structure 5 according to another preferred embodiment of the present invention, Fig. 13 is a cross-sectional view of the key structure 5, and the cut surface position can refer to the line X-X in Fig. 1 . The structure of the key structure 5 is substantially the same as that of the key structure 1 , so the same elements of the key structure 5 still use the element symbols of the key structure 1 . The following mainly focuses on the differences between the key structure 5 and the key structure 1. For other descriptions of the key structure 5, please refer to the relevant description of the key structure 1, and no further details are given.

In this embodiment, the magnetic piece 62 of the button structure 5 includes two abutting portions 622, and the first bracket 58 of the button structure 5 includes a hollow 191, so that when the magnetic piece 62 is assembled into the groove 186 of the first bracket 58, it can resist The connecting portion 622 can pass through the hollow 191 to rotatably abut against the bottom plate 12 , so that the magnetic member 62 can rotate relative to the bottom plate 12 . In this embodiment, the rotation axis of the magnetic member 62 relative to the base plate 12 is different from the rotation axis of the first support 38 relative to the base plate 12, that is, the magnetic member 42 and the first support 58 are each rotated by a rotation axis (marked with a cross). In the figure) is rotatable relative to the bottom plate 12. In this embodiment, the first bracket 58 includes a first part and a second part. The first part (ie, the pivot structure 184) is rotatably abutting against the keycap 16 roughly around the first rotation axis R1. The second part The part (that is, the pivot structure 182) is in rotatable contact with the bottom plate 12 approximately by the second rotation axis R2, and the contact portion 622 is in rotatable contact with the bottom plate 12 approximately by the third rotation axis R3. The projection on the base plate 12 is located between the projections of the first rotation axis R1 and the second rotation axis R2 on the base plate 12 . An attractive force (indicated by a thick line with double arrows in FIG. 13 ) can be generated between the magnetic piece 62 and the magnetic portion 122 , so that the magnetic piece 62 and the magnetic portion 122 tend to approach each other. In this embodiment, although the magnetic piece 62 is not fixedly combined with the first bracket 58, through the structural mutual restraint between the magnetic piece 62 and the first bracket 58, the attractive force can still make the magnetic piece 62 exert force on The first bracket 58 . Under the action of the attractive force, the direction and position of the force exerted by the magnetic member 62 on the first bracket 58 (located between the second rotation axis R2 and the magnetic part 122 ) are roughly shown by the solid single arrow in FIG. 13 ; The attractive force can drive the first bracket 58 to rotate counterclockwise through the magnetic member 62 to move the keycap 16 away from the bottom plate 12 . When the first bracket 58 is driven by the keycap 16 to rotate clockwise (for example, the keycap 16 is pressed in FIG. (shown) to drive the magnetic part 62 to rotate clockwise to move away from the magnetic part 122 .

In addition, in the key structure 5 of this example, when an external force is applied to the middle or the right side of the key cap 16, the action of the key structure 5 is roughly the same as that of the key structure 1. Please refer to FIG. 5 and FIG. 6 and their related descriptions accordingly. . Please refer to FIG. 14 , which is a cross-sectional view of the keycap 16 of the key structure 5 after being obliquely pressed. When the external force F5 is applied to the left side of the keycap 16, the second bracket 20 is driven by the keycap 16 to rotate counterclockwise and drive the magnetic part 62 to rotate clockwise to keep away from the magnetic part 122. Description of the operation of the second bracket 20. At this time, since the magnetic piece 62 is not completely fixed with the first bracket 58, the magnetic piece 62 rotates clockwise independently of the first bracket 58, and the first bracket 58 rotates together without being affected by the magnetic piece 62, so that the keycap 16 is inclined. state of pressing. If in practice, for example, the magnetic member 62 and the first bracket 58 are combined together through more structural restraints, adhesion, etc., then the button structure 5 and the button structure 1 at this time have the same logical action. .

The overall structures of the key structures 1, 3, and 5 in the foregoing embodiments are roughly the same, and the main difference is that the magnetic parts 22, 42, 62 are connected to the first brackets 18, 38, 58 in different ways, causing the key caps 16 to be different. In the case of being pressed, the actions of the first bracket 18, 38, 58 and the second bracket 20 are slightly different, but the button structures 1, 3, 5 still use the magnetic force between the magnetic parts 22, 42, 62 and the bottom plate 12. The attractive force generated between the parts 122 produces structural constraints and driving effects on the first bracket 18, 38, 58 and the second bracket 20, at least realizing driving the first bracket 18, 38, 58 and the second bracket 20 to push the keycap 16 A mechanism for moving in a direction away from the base plate 12 . Therefore, in actual operation, except in the situation where the actions are necessarily contradictory, the structural configurations of the key structures 1, 3, and 5 can be replaced and operated, and the above-mentioned action descriptions about the key structures 1, 3, and 5, Cross-references are also possible. For example, the first support 58 of the key structure 5 can also include a structure such as the draw-in groove 192 of the first support 38 of the key structure 3, and the magnetic part 62 of the key structure 5 also includes correspondingly as the magnetic part 42 of the key structure 3. The structure of the tongue portion 424 is equivalent to the action of the key structure 5 at this time. In addition, in the button structure 3,5, the magnetic parts 42,62 and the first brackets 38,58 are not fixed together, so the magnetic parts 42,62 and the first brackets 38,58 are respectively relative to the rotation axis of the base plate 12 (such as The relative position between the above-mentioned rotating shafts R2, R3) will affect the applied force and moment between the magnetic parts 42, 62 and the first brackets 38, 58, for example, the projected position of the rotating shaft on the base plate 12 will affect the mutual applied moment, This relationship can be fully understood based on the principle of leverage, and will not be repeated here. In addition, in order to prevent the magnetic part 122 from causing magnetic interference to other electronic components (such as components of a notebook computer near the keyboard), a paramagnetic metal piece can be added under the base plate 12 .

Please refer to FIG. 15 , which is an exploded view of a key structure 7 according to yet another preferred embodiment of the present invention. The key structure 7 is roughly the same as the key structure 1, so the same components of the key structure 7 still use the component symbols of the key structure 1. The following mainly focuses on the differences between the key structure 7 and the key structure 1. For other descriptions of the key structure 7, please refer to the relevant description of the key structure 1, and no further details are given. Compared with the key structure 1 , the key structure 7 shows a structure in which the magnetic member 82 is combined with the first bracket 78 . Please also refer to FIG. 16 to FIG. 20 , FIG. 16 is a schematic diagram of the combination of the magnetic component 82 and the first bracket 78 . FIG. 17 is a schematic diagram of the first bracket 78 from another perspective. FIG. 18 is a top view of the key structure 7, in which the outline of the keycap 16 is indicated by a dotted line. FIG. 19 is a cross-sectional view of the key structure 7 along the line Z-Z in FIG. 18 , wherein the keycap 16 is not shown. FIG. 20 is a cross-sectional view of the key structure 7 along the line W-W in FIG. 18 , where the keycap 16 is not shown. Similarly, in the button structure 7, the first bracket 78 is connected to the bottom plate 72 and the keycap 16 by the pivot structures 782 and 784 respectively, and the second bracket 80 is connected to the bottom plate 72 and the keycap 16 by the pivot structures 802 and 804 respectively. , the first bracket 78 and the second bracket 80 can press the film circuit board 14 with the protrusions 781 and 806 respectively to trigger the switches 142a and 142b. Wherein, the pivot structure 782 is connected with the connection parts 724a and 724b of the bottom plate 72, the two ends of the pivot structure 782 are in contact with the connection part 724a, and the middle part of the pivot structure 782 is in contact with the connection part 724b through a groove structure 782a. The pivot structure 802 is connected to the connection parts 726a, 726b of the bottom plate 72, the two ends of the pivot structure 802 are in contact with the connection part 726a, and the middle part of the pivot structure 802 is in contact with the connection part 726b through the hole structure 802a. In practice, the number of connecting parts 724a, 724b, 726a, and 726b is not limited to two in this embodiment, and can be increased or decreased depending on the structural complexity and operational stability of the actual product.

In this embodiment, the magnetic element 82 is combined into the groove 786 of the first bracket 78 . The magnetic member 82 has a first side 82a, a second side 82b, a third side 82c, a first protruding portion 822 and a second protruding portion 824, the first side 82a is opposite to the second bracket 80, the second side 82b is opposite to the second The three sides 82c are opposite and adjacent to the first side 82a, the first protrusion 822 is located on the second side 82b, and the second protrusion 824 is located on the third side 82c. The first bracket 78 includes a first slot 788 and a second slot 790 . The first protruding portion 822 and the second protruding portion 824 are respectively inserted into the first engaging slot 788 and the second engaging slot 790 . In this embodiment, to simplify the description, the first protruding portion 822 and the second protruding portion 824 have the same structure, but the invention is not limited thereto. Therefore, for the relevant description of the second protruding portion 824 , please refer to the relevant description of the first protruding portion 822 , and no further details are given. The first protruding portion 822 includes a cantilever 8222 extending toward the bottom plate 72 in the extending direction D1 . The cantilever 8222 has an inclined end surface 8224 in the extending direction D1 , and the inclined end surface 8224 faces the bottom plate 72 . In this embodiment, the cantilever 8222 extends obliquely relative to the vertical direction D2, and the inclined end surface 8224 is substantially perpendicular to the extending direction D1, so the inclined end surface 8224 itself is not parallel or perpendicular to the vertical direction D2. The first locking groove 788 has an edge 7882, and the projection P1 (represented by a dot in FIG. 19 ) of the edge 7882 in the vertical direction D2 (that is, the direction corresponding to pressing the keycap 16) falls on the projection P2 of the inclined end surface 8224 in the vertical direction D2. (indicated by a thick line segment in FIG. 19 ), so that the first protruding portion 822 will not disengage from the first engaging groove 788 in the vertical direction D2. In addition, due to the aforementioned projection relationship, when the magnetic part 82 is assembled to the first bracket 78, the edge 7882 can slide on the inclined end surface 8224, so the inclined end surface 8224 has a guiding function, so that the first protrusion 822 can be smoothly inserted into the first bracket 78. into the slot 788 (for example, to make the magnetic piece 82 or the first support 822 slightly elastically deformed).

It is added that, as shown in Figure 19, by controlling the clearance between the first protruding portion 822 and the second protruding portion 824 and the first locking groove 788 and the second locking groove 790, the first protruding part 822 and second protruding part 824 are clamped in the first clamping groove 788 and the second clamping groove 790, so as not to disengage from the first bracket 78; for example, in FIG. The first protruding portion 822 and the second protruding portion 824 are separated from the first engaging slot 788 and the second engaging slot 790 . Therefore, based on this structural feature, in actual operation, the magnetic member 82 can also use a single protrusion (such as the first protrusion 822) to be clamped in the first locking groove 788, and the magnetic member 82 is opposite to this protrusion. The opposite side (such as the third side 82c) is close to the inner wall of the groove 786, which also has the effect of preventing the magnetic piece 82 from breaking away from the first bracket 78; opposite side. In addition, in this embodiment, the magnetic part 82 also has two tongue parts 826, which are respectively inserted into the two slots 792 of the first bracket 78, which also contributes to the stable combination between the magnetic part 82 and the first bracket 78; In practice, the tongue part 826 can also be shaped like the structure of the first protruding part 822 . It should be added that, in this embodiment, although the first protruding portion 822 is implemented as a cantilever structure in which the magnetic member 82 extends obliquely downward, the present invention is not limited thereto, for example, the tongue portion 826 Implementation of the structure, or a structure capable of holding the card slot 788 is also acceptable.

In addition, in this embodiment, the magnetic member 82 has a third protruding portion 828 located on the first side 82a. The second bracket 80 has a central side 80a and a third engaging slot 808, the central side 80a is opposite to the first side 82a, and the third engaging slot 808 is located on the central side 80a. The third protruding portion 828 can be snapped into the third slot 808 movably, which can increase the stability of the interaction between the magnetic component 82 and the second bracket 80 . In addition, the magnetic member 82 also has a fourth protruding portion 830 and a fifth protruding portion 832 , both of which are located on the first side 82 a. The first side 82 a of the magnetic member 82 has a middle point and two ends, wherein the third protrusion 828 is located at the middle point, and the fourth protrusion 830 and the fifth protrusion 832 are respectively located at the two ends. The length L1 of the first side 82a of the magnetic member 82 is greater than the length L2 of the central side 80a of the second bracket 80, so that neither the fourth protrusion 830 nor the fifth protrusion 832 touches the second bracket 80 and extends directly on the second bracket 80 without obstruction. Above the bottom plate 72, the stability of the magnetic component 82 can be increased. In other words, in this embodiment, the fourth protruding portion 830, the third protruding portion 828 and the fifth protruding portion 832 form an E-shaped protruding claw structure on the first side 82a, and only the third protruding portion 828 Under the action of magnetic force (generated by magnetic attraction between the magnetic part 82 and the magnetic part 722 ), it abuts against the second bracket 80 , but the present invention is not limited thereto. For example, the third protruding portion 828, the fourth protruding portion 830 and the fifth protruding portion 832 can all be subjected to magnetic force and abut against the second bracket 80, which also facilitates the interaction between the magnetic member 82 and the second bracket 80. stability.

In addition, in this embodiment, the first bracket 78 is connected to the base plate 72 through the connecting portions 724a, 724b, and the magnetic member 82 has two relief grooves 834 corresponding to the connecting portion 724b and the groove structure 782a, so that when the keycap 16 faces the base plate When 72 moves, the connecting portion 724b relatively protrudes into the corresponding relief groove 834 to avoid structural interference between the connecting portion 724b and the magnetic member 82 . In this embodiment, the relief groove 834 is implemented with this structure, but the present invention is not limited thereto; for example, it can also be implemented with a structural groove (similar to the groove structure 782 a ). In addition, a protruding platform 836 is formed at the portion of the magnetic element 82 formed in the relief groove 834 , which has a structural strengthening function and can compensate for the structural weakening of the magnetic element 82 caused by the formation of the relief groove 834 .

In addition, the bottom plate 72 has two fixing mechanisms 728 protruding from the bottom plate 72 to fix the magnetic part 722 . The magnetic part 82 has a waist 838 which overlaps with the projection of the magnetic part 722 in the vertical direction D2 (as shown in FIG. 18 ). The width W1 of the magnetic part 722 is greater than the width W2 of the waist 838 . On the other hand, each member of the button structure 7 adopts a compact configuration, and the structure of the waist 838 of the magnetic part 82 has the function of avoiding interference with the structure of the fixing mechanism 728 fixing the magnetic part 722, and at the same time maintaining the structural strength of the magnetic part 82 itself as much as possible. effect. In addition, the overlapping area of the magnetic piece 82 and the magnetic portion 722 in the vertical direction D2 affects the magnetic attraction force generated between the magnetic piece 82 and the magnetic portion 722, so the structure of the waist 838 in this embodiment avoids interference with the structure of the fixing mechanism 728. In addition, it is possible to provide a larger magnetic attraction force with the magnetic part 722 , so that the magnetic part 82 and the second bracket 80 can interact stably.

It is supplemented that, when pressing the button structure 7 , the interaction relationship between the first support 78 , the second support 80 and the magnetic member 82 can be directly referred to the relevant description of the above-mentioned pressing button structure 1 , and will not be repeated here. In addition, in the foregoing embodiments, if there is a magnetic part and the first bracket that need to be fixedly combined with each other (for example, the magnetic part 22 is fixedly arranged on the first bracket 18), it can work in the key structure 7, and the magnetic part 82 and the first bracket The combined structure of a bracket 78 will not be described in detail.

Compared with the prior art, the mechanism (that is, the magnetic part and the magnetic part) used to generate the restoring force in the button structure of the present invention can function without occupying too much space, reducing the structure and work of the first bracket and the second bracket. In addition, the required attractive force can be obtained by selecting the materials of the magnetic member and the magnetic part without increasing the structural volume of the magnetic member and the magnetic part. In this way, the operating stability and structural strength of the first bracket and the second bracket can be maintained above a certain level. Therefore, the key structure of the present invention can overcome the dilemma that the key cap structure in the prior art cannot provide both the stability of the keycap action and the sufficient feeling of pressing feedback when the key structure is applied to a thin keyboard.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes All changes and modifications should belong to the scope of protection of the appended claims of the present invention.

Claims (17)

1. a kind of press-key structure, it is characterised in that the press-key structure includes:

Bottom plate has magnetic portion；

Keycap is set on the bottom plate；

First support is set between the bottom plate and the keycap, which is plastic parts；

Second support is set between the bottom plate and the keycap, which is plastic parts, and the keycap is via the first support And the second support and can be moved up and down relative to the bottom plate；And

Magnetic part, the corresponding magnetic portion are set in the first support, which is magnet or paramagnetic metal part, the magnetism Attraction is generated between part and the magnetic portion, which contact the magnetic part and force in the first support and this second Frame is to drive the first support and the second support to move the keycap along the direction far from the bottom plate；

Wherein, which rotatably abuts the bottom plate and the keycap, the second support rotatably abut the bottom plate and The keycap, when the keycap is moved up and down relative to the bottom plate, the first support is reversed relative to the bottom plate with the second support Rotation, the magnetic part and the first support rotating Vortex.

2. a kind of press-key structure, it is characterised in that the press-key structure includes:

Bottom plate has magnetic portion；

Keycap is set on the bottom plate；

First support is set between the bottom plate and the keycap；

Second support is set between the bottom plate and the keycap, which can phase via the first support and the second support The bottom plate is moved up and down；And

Magnetic part is fixed in the first support, generates attraction between the magnetic part and the magnetic portion, which makes the magnetic Property part contacts and forces in the first support and the second support to drive the first support and the second support by the keycap edge Direction far from the bottom plate is mobile, and wherein the magnetic part and the first support are rotated with same rotary shaft relative to bottom plate.

3. press-key structure according to claim 1 or 2, it is characterised in that: form fluted, the magnetism in the first support Part is embedded in the groove.

4. press-key structure according to claim 1 or 2, it is characterised in that: the bottom plate includes interconnecting piece, first support warp It is connect by the interconnecting piece with the bottom plate, which has recessing groove, when the keycap is mobile towards the bottom plate, the interconnecting piece phase It is protruded into the recessing groove over the ground.

5. press-key structure according to claim 1 or 2, it is characterised in that: the magnetic part has the first side, the second support With central side, first side of the magnetic part is opposite with the central side, which has third protrusion, third protrusion Portion is located at first side, central side of the third protrusion against the second support.

6. press-key structure according to claim 5, it is characterised in that: the second support includes third card slot, the third card Slot position is caught in the third card slot in the central side, the third protrusion.

7. press-key structure according to claim 5, it is characterised in that: the magnetic part also has the 4th protrusion and the 5th convex Portion out, the 4th protrusion and the 5th protrusion are respectively positioned on first side, and first side of the magnetic part has midpoint and two Endpoint, the third protruding parts are located at the two-end-point in the midpoint, the 4th protrusion and the 5th protrusion.

8. press-key structure according to claim 7, it is characterised in that: the length of first side of the magnetic part be greater than this The length of the central side of two brackets, so that the 4th protrusion and the 5th protrusion are not in contact with the second support and without hindrance It is directly extended in above the bottom plate every ground.

9. press-key structure according to claim 1 or 2, it is characterised in that: the bottom plate also has a plurality of fixed mechanisms, should A plurality of fixed mechanisms are protruded to fix the magnetic portion on the bottom plate, which has waist, the waist and the magnetic portion It is overlapped in the projection of vertical direction, the width of the magnetic portion is greater than the width of the waist, which is located at The waist it is not ipsilateral.

10. press-key structure according to claim 1, it is characterised in that: the first support includes first position and second Position, the first position rotatably abut the keycap with the first rotary shaft, which is rotatably supported with the second rotary shaft The bottom plate is connect, which includes abutting part, which rotatably abuts the bottom plate with third rotary shaft, third rotation Axis is located at first rotary shaft and second rotary shaft between the projection on the bottom plate in the projection on the bottom plate.

11. press-key structure according to claim 1 or 2, it is characterised in that: the second support includes first position, second Position and third position, the first position rotatably abut the keycap, which rotatably abuts the bottom plate, this Three positions keep contacting with the magnetic part, which is located between the first position and the third position.

12. press-key structure according to claim 1 or 2, it is characterised in that: the magnetic part to adhere, close-fitting, notch Or the mode that embedment is projected is fixed in the first support.

13. press-key structure according to claim 1 or 2, it is characterised in that: the magnetic part has the first side, second side, the Three sides and the first protrusion, first side is opposite with the second support, the second side it is opposite with the third side and with the first side Adjacent, first protruding parts is in the second side of the magnetic part, which combines the first support, to prevent the magnetic Property part from first support be detached from.

14. press-key structure according to claim 13, it is characterised in that: first side is adjacent with the second side, this first Protrusion includes the cantilever being biased to the bottom plate and being extended with extending direction, which has angled end-face, the splay end in the extending direction Facing towards the bottom plate, which has the first card slot, which has edge, and the edge is in the projection of vertical direction The angled end-face is fallen in the projection of vertical direction.

15. press-key structure according to claim 13, it is characterised in that: the magnetic part also has the second protrusion, this Two protruding parts are incorporated into the first support in the third side of the magnetic part, second protrusion, to prevent the magnetic part certainly The first support is detached from.

16. press-key structure according to claim 1 or 2, it is characterised in that: the magnetic part has the first side, second side, the Three sides and protrusion, first side is opposite with the second support, and the second side is opposite with the third side and adjacent with the first side, The protruding parts is in the opposite side of first side of magnetic part, which combines the first support, to prevent magnetic part from first Bracket is detached from.

17. press-key structure according to claim 2, it is characterised in that: the first support is plastic parts,

The magnetic part is paramagnetic metal piece, and the magnetic portion is magnet；Or

The magnetic part is magnet, which is paramagnetic metal piece；Or

The magnetic part and the magnetic portion are magnet, and the two magnetic pole is reversed.